DCI Team

Norbert A. STREEP

• The C.E.O. and Managing Director, is actively involved with the day-to-day running of the company. Trained in Antwerp by the then President of the Federation of World Diamond Exchanges. Subsequently, studied and graduated at the GIA for diamond grading and gem identification.
• Actively involved in the family business since 1975 and the 5th. generation in succession to continue in the family’s diamond tradition since 1876.
• In 1975 I joined the family business in Amsterdam – Holland and from 1976 – 1992 in London – England, in partnership with my Father, whose experience and advice continues to be a daily source of inspiration and of great importance to me.
• Both in the Antwerp and Barcelona office I am assisted by my wife Mrs. Maria Luisa Streep – Ybern, who actively maintains contact with our Spanish business partners. Her opinion, and considerable experience in business, based on a demonstrated and illustrious record, is very valuable to DCI.

• Accomplishments and Memberships:
  • Sworn diamond and precious stone assessor
  • Arbitrator
  • Silver Enterprise Award (U.K.)
  • Silver decoration of merit (Belgium)

Tanja DE GREEF

• Tanja trained and graduated from the diamond production college in Antwerp. After working for 6 years as a diamond cutter she used the gained knowledge and experience to qualify as a diamonds grader. After working as a member of a large team of diamond graders, she applied to join the specialists at DCI. Tanja has implemented her own control system to prepare us for the application of an ISO 9001:2000 certificate. Her grading skills and meticulousness make her the perfect Manager of our Grading Department. Tanja is assisted by skilled, trained graders and of course by her senior grader of many years;

Julio MARTINEZ-FORTUN YBERN

• Julio, is the manager of the Barcelona representative office. Not only will this office advice and serve customers on the Iberian Peninsula, we are also dedicated to serve those customers who wish to use diamonds for incentives and promotions. He will also advice and supply diamonds to those particular customers who cannot locate what they require on the local traditional market.
• In 1996 Julio graduated as a diamond expert at the HRD in Antwerp Belgium. He has a fully installed diamond laboratory at his disposition in Barcelona.

Ivette ALTAMIRANO GOMEZ

• As the Directors and General Secretary, her communicative skills and charismatic approach are essential. Ivette is native of Peru where obtained her Bachelor degree in Law and subsequently was appointed to the Bar as a Lawyer. She is multi lingual, speaks German, English, French, Dutch and of course Spanish.
• She was also trained at DCI to operate the latest electronic tools available to the diamond industry.
• As she often is the first contact at DCI she ensures the everyone is made feel welcome and that all enquiries are dealt with efficiently and smoothly.

The PRODUCTION TEAM & ENTREPRENEURS 

• To ensure that our customers receive the diamonds that they require and that we can continue with our tradition of excellence, we have a carefully selected team of entrepreneurs and partners. These include Brokers, Diamond Cutters and Production specialists both in Belgium and internationally, many of them work exclusively for DCI... We also have excellent relationships, with all the Antwerp Diamond Laboratories. All have been trained to our high standards and all are accredited members of the diamond industry.